Skip to main content

Time a block of code

Project description


Time a block of code.

Use as the context expression of a with statement:

>>> from harrison import Timer
>>> with Timer() as t:
>>>     ...
>>> print t.elapsed_time_ms

When a description string is passed on initialization, the elapsed time will be printed on completion, keyed by this description.

>>> with Timer('My expensive block of code'):
>>>     ...
My expensive block of code: 12345 ms

You can also start and stop a Timer explicitly:

timer = Timer()

print timer.elapsed_time_s

print timer.elapsed_time_s

You can also time each execution of a function using a decorator:

from harrison import profile

@profile('Describes the function')
def some_function():

# Without args, the function name (e.g. 'some_function') will be used
# as the description.
def another_function():

You can also use RegisteredTimer, which groups together a bunch of named timers, provides utilities for serializing their times, and an optional global timer registry.

Named after John Harrison, the English carpenter and clockmaker who invented the marine chronometer.

Similar libraries

This is similar to the library contexttimer, but that library is licensed under the GPLv3 which is more restrictive than two-clause BSD license used here.


pip install -r requirements_dev.txt
rake lint


Pull requests welcome!


If you are having issues, please let us know.


The project is licensed under the two-clause BSD license.

Project details

Release history Release notifications

Download files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

Files for metaboharrison, version 1.2.0
Filename, size File type Python version Upload date Hashes
Filename, size metaboharrison-1.2.0.tar.gz (5.9 kB) File type Source Python version None Upload date Hashes View

Supported by

Pingdom Pingdom Monitoring Google Google Object Storage and Download Analytics Sentry Sentry Error logging AWS AWS Cloud computing DataDog DataDog Monitoring Fastly Fastly CDN DigiCert DigiCert EV certificate StatusPage StatusPage Status page